A Rear Wing SO MASSIVE it picks the FRONT of the car up at 130 MPH.
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- เผยแพร่เมื่อ 20 มิ.ย. 2024
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Wingmaker: how much down force do you want?
Rob: yes.
Wingmaker: but the dra...
Rob: *DID I FUCKING STUTTER???*
It's honestly not that big of a wing compared to some other hill climbing cars you see
All of it. What he is saying his game shark cheat engine is not working so he needs all the downforceable help he can get
@@alexray2925 The Suzuki V6 ESCUDO Pikes Peak Special '98 is a Pikes Peak Hill Climb rally car produced by Suzuki
Like this if you don't like the stupid ad "Cars lie to us"... If you tired of this stupid ad... Definitely motorcycles tell you the truth, when your ass is on the pavement. Such a stupid ad.
😂😂😂😂😂 Truth!
I love the random ass order these videos are in lmao
Me too .I'm like, Rob is now in Colorado? Right? Tell me he is close to Colorado? 😂
I though Rob said something really powerful in this video. At around 16:39 he says "The guys are giving it their all. It's not enough time to be honest. They're new to managing a project because I'm finally just not doing it. They're realizing that they have to prioritize certain things."
In the past he has talked about how hard he and the team is working and how little sleep he gets, but he always left finished the statement in a positive light. Whether the positivity was in the form of praising the work of his team or showing off some new top of the line part they are going to use, he always made it seem like they are doing just as good of a job as if they had more time. It seems to me though that they really aren't.
The first case I really noticed was when they had to fill in the those massive gaps on the mounting rails for the smooth bottom. This seemed to be just a mistake from cutting quickly and trying to save time. The lack of time really came to a head thought when building up the engine. Rob was down to the wire on time and couldn't find the rest of the dowels for the third rotor, so he just put in the two that he had and ran with it. This significantly reduces the durability and power-making-potential of the engine. These actions show how the team is rushed on time and really is cutting corners to get it done. I think that it has been obvious to all that have been following the build that this has been the case, but up until now Rob hasn't said anything about it.
Today, though, Rob actually said aloud that they are running low on time and the car could be done better. I thought that this was super brave as it breaks the character of "Rob Dahm". That character never really admits something could be done better until there is something new and exciting to replace it with. Until then he doesn't mention it or only has praise for it.
The other part that I though was brave was admitting that the team could be better and also saying that Rob isn't doing it all. It's not exact what it means in this case, but it could mean all the work or managing on smaller items, not just setting the larger vison. Both of possibilities reflect well on Rob. They mean that he is delegating work to others and letting go of some control on his projects which on projects, like this one, that mean a lot is very hard to do and admirable.
Completely unrelated, but also super cool was Isaiah talking about the struggles of going from the sole maker to being a manager of many other makes and how it is hard to communicate a good idea in your head to all the other people. He also talked about how when that communication breaks down the project doesn't get done the way that you were envisioning and that it feels like it would be easier to do it yourself.
Under rated comment, you say some great stuff and took the time to type it out
Well said man, couldn't agree more.
i fucking love the team being on camera more especially isaiah with his beautiful honest talk
You can definitely tell they're getting comfortable on camera their work and their mistakes
If only professional awesome racing could keep their products in stock long enough to buy them. Feels like every universal product is in perpetual backorder
man, my local market can't even keep chicken nuggets in stock... you expect racing parts to be easier?!?!?
@@AlteredCarbonsLove your comment, shits gold
@@pYr0mAn1aC101 i kid you not... i been trying to get some chicken nuggets for 2 weeks now lol.. i just cant, they are never in stock and sell out with in a day of the truck showing up which is never a set date. it just shows up. but you try telling a 6 year old no nuggies again and im sure they turn into what i imagine telling a racing team no turbo for you! but i did learn how to make nuggets its just time consuming and a pita
@@AlteredCarbons I work in a kitchen, truthfully, you can buy wholesale boxes of nuggets at a restaurant store near you, and they usually charge taxes in the price. Might be your best bet. Restaurant quality and quantity for cheaper than buying multiple at a store
@@pYr0mAn1aC101 I wasn't expecting to learn about the Nuggie Grey Market on a Rob Dahm vid tbh
Yes, you definitely need to open up some front wheel well reliefs. It's already preparing itself for the "Mercedes Flip"
I mean that’s not why the Mercedes flipped and shouldn’t be an issue with robs car. That being said he really should focus more on front aero. Profiled splitters, endplates, 3D canards and wheel venting can gain you a ton of front downforce which for closed body cars like this is always much harder to get than rear downforce.
@@cademckee7276he already has a ton of downforce with all that steel being welded in there. Most of the competition on Pikes Peak are using composites wherever they can. Time Rob got some capability in that area rather than just bolting/welding bits on. Although I love what he's doing with the car, it's not next level
@@RedBatRacing more weight ≠ more downforce, max g accel is more or less determined by:
tire grip × (car weight + aero downforce) / car weight
As such, adding more steel (car weight) thus requires even more downforce to make the same turn
@@harrierpigeon_6940 I was being more facetious rather than pedantic. But yes that's correct :)
@@harrierpigeon_6940this isn’t really a good explanation. If tire grip was constant sure, but due to load sensitivity, the coefficient of friction is actually lower when the sum of forces downward is higher
15:39 should said 200 pounds of Dahm force
The time, effort, and expense on this car is off of the charts. Rock on, Mr. Dahm and crew!
True, i stil think the 4rotor was worse and at the time the main parts of the car (frame and enfine) were built he was a lot less known... that must have been crazy back then :D
@@maximilianstobinski2469 My family bought a Mazda RX2 in 1972 I believe. Although I was 14 years old at the time and didn't know which was the working end of a screwdriver, I remember how smooth the engine ran. Even after all of these years the memory is still fresh in my head.
That’s Dr.Dham to you
@@dandandarko9375 Yes, yes it is.
Sand down the aluminum on the font diffuser to make it seamless it is detaching the Flow. And also do this on the rear diffuser. Ticker is better remember that the surface area of the floor is higher than the wing and it is generating far more downforce than it.
And going with thinner floor is good to a point as it can still flex depending on the suction forces, and the side skirts seal
that dude that put's his arm in front of the grinder while he is grinding in his direction realy has no fears
Gotta "love" the safety glasses lifted up, staring literally right at the blade through just some prescription lenses...
Yes, don't ever do that.
Yep just lucky these blades never ever fragment and have never ever injured anyone ever.
Same with the CF
Titanium sparks white because it burns extremely fast and extremely hot. As titanium breaks down into particulates it becomes more combustible with the right mix of oxygen and can burn up to 3300°C. I do titanium 3D printing and have to take a lot of preventative fire measures depending on what I’m doing with the stuff. We use it as a blasting media and it has caused a flash fire in our cabinets before. Alloy printing is a lot of fun!
Titanium 3D printing sounds incredibly interesting. Time to go down a Google rabbit hole
@@jcc3494 send me any questions you come up with, happy to talk about it any day all day.
@18:50 I’d recognize @motionautotv shop anywhere, where you at Trev!!
Good catch
Awe man @robdahm hanging out with @motionautotv now?
Deff maybe something in the works.
When watching his videos the time goes by so fast. That car is looking amazing too.
Let’s go Rob! So excited to see you tear up Pikes Peak dude
RAD!!!!! Truly an inspiration Rob!!! Make it up that mountain in 1 piece...Can't wait to see it.
This is the best thing I think I've ever watched, car-related. Between the madman and the fabricators watching his ideas and what goes into building a world-class Pikes Peak car, it's so awesome. I will say when it comes to my project cars, you really brought me down to earth, lol.
The hair at 15:15 shows real commitment!
I think the front splitter down force explanation was awesome... simple but that was a good perspective of what is actually happening
It was more or less completely wrong though. Diffusers do not generate downforce, and they certainly do not decrease the density of the air. Diffusers actually increase the pressure of the air by slowing it down, which makes the splitter or under tray it's attached to more effective (the splitter/tray is generating downforce because air under it is faster, therefore lower pressure). A diffuser on its own will do basically nothing.
@@SargentSamyou’ve got it backwards, it isn’t faster therefore lower pressure, it is lower pressure therefore faster.
@@SargentSam unless you want to talk about ground effect but that is another can of worms.
@@Anon.G Not sure I do? Faster and therefore lower pressure because of the law of conservation of energy? Ultimately the air is entering a restriction, which is speeding it up.
@@LimitPro1 Splitters, flat trays and complicated "ground effect" trays with Venturi tunnels (assuming that's what you're referring to as everything is being influenced by ground effects) are all operating on the same principle, just with different levels of efficiency and effectiveness.
I love this build series. Fabby daddy is the best part of this channel.
Rob you wildin bruh😂 0:20
Man, I am just SO invested in this build. I have dreamed about going up Pike's Peak since playing Gran Turismo 2 so I guess I'll just have to live vicariously through you. 😅
Wish i could go to the hillclimb this year😢 got Aneurism surgery instead 😏
Hope all goes well for you
Wish you the best bro
Rob Dahm the way you improve cars is like an engineer would have done in his work area. You are straight forward, efficency, power, weight, grip and resistance, godly work🙌🏼🙏🏼🔥
It's mad to me that almost out of nowhere, the three rotor is suddenly your most serious race car. At least until the indy car gets running.
I'd love to see a collab of Rod and Mad Mike
11:04 as a rookie at the top! Rob you have overcome my expectations by a LOT! Incredible how fast you have become a legitimate racer with a hell of a car. Well done Rob! How exciting!
Babe wake up new Rob Dahm video just dropped
I'm awake sweetie
No diddy
Rob actually completed Pikes Peak in 11:04. He did it!
can we get more Isaiah welding to relaxing music. It was surprisingly satisfying.
1:10 unironically amazing explanation. I never knew this until now.
The Venturi effect is so amazing! Creating vacuum from still unmoving air! Nice!
You know Rob's a genius when his handwriting is on point 20:45
Love to hear isahia say "i have great ideas, just find it difficult to get the point across" we love a self worth king working on himself AND the team helping him ❤
this is such an awesome build!!! Can't wait to see your run!!
Loved this ep. Felt like I was in lounge bar with chilled piano music watching some art installation being created. Love the content 👌
Saw this going up the peak it’s sick!
Very cool car and happy I got to see it in person. Hope you're having a good time in colorado springs!
Dahm is one hell of a Wingman
The music and Isaiah welding...pure ASMR, could fall asleep to that stuff :)
Robs context is educating as hell and I love it
Friday just got 5 times better thx Rob!
Can't wait for ore of this build! Carry on gentlemen.
This content is absolutely come captivating I love watching this I love listening to this and geeking out over stuff I don't even know how to geek out over
I watch several other TH-camrs like the rest of us I’m sure. But this is the most exciting thing right now. Watching the FD come together and be the monster rob and the team have created is inspirational for sure. Love it
Rob you’re doing amazing ! Keep it up brother
Putting the wing that far back is going to cause it to have a huge lever arm and produce a torque about rear wheel, lifting the entire front end up. Already the car will be rear bias since pikes peak is up hill. This car will understeer like a mac truck and make those ohlins worthless. Unless you can get such high front downforce you can balance the moment, then ballance the rear force. Drag on the wing will also contribute to the moment via mounting height albeit less so. If u leave the wing there i would trim it to absolute minimum. Don't trust me though just do the math.
He did the math at around 21:00 he knows the front lifts
@@mikaeltorres2746 ya sort of got an idea with the shock pot data. Could have done the math pre wing mounting though to make sure balance would be good. I Am curious to see the aero balance once the front end is on. Still think the wing is too far back though since you have to waste alot of front downforce just to bring the front end back down. If the wing mount was more forward the force could go right into the tires.
@@flyingfox09 Exactly. I can't help but cringe at that wing placement
All of the front downforce generating components are also in front of the front wheels, counteracting the wing. And you have the entire flat bottom that's also generating downforce.
@@flyingfox09 he said during the video that the wing is where it is because it helps the diffuser. By helping the diffuser, all of the rear downforce becomes more efficient. He's countering the front lift by adding downforce at the front with a better splitter, front diffusers, and canard type side elements.
At the 18.33 time marker, I see something wrong in the design. Since we're dealing with Aero Dynamics why not using flat head screws and a counter sync ??? Less friction and making it perfectly flat. I reeally enjoy your channel and wish you great succes
Also prevents shearing off heads from bottoming out or whatever. Probably unlikely, but you definitely don't want these plates to go flying into the crowd.
If you need to mig a gap and the material is thin, use a copper plate/flat/ bar at the back to stop fall away.. it will help you get a smooth finish on one side and nice bead on the other, 5-6mm gap is the limit, smaller will work a treat.
Also counter sink the screws (Aircraft skin style) so the road and curbs don’t shear off the heads compromising the plates adherence to the underside of the car.
Can't wait to see it at the halfway point. Making max down force for the win! I'll see you in 48 hours Rob!
Can't wait for Sunday!!!! 😸
I love this technical stuff. Nerds are the best!
fav build series on youtube
Ya know at first I was thinking "ah why mess with the three rotor, just get it to the track but... yeah keep going this is so incredible.
Been watching since the Lambo. I always get a little giddy when I see a new video from you (guys). Keep it up!!
FINALLY my daily dose of Rob Dahm adventures
48 hours! Let's go Rob!
Feels like I got my surgery at the right time. Nothing like a almost race day crunch for the videos to come flooding lol
Man I love these stats and the progression of the RX-7
Now that is a wing.
Epic project!
Honestly not sure how to say this.. but I've found myself all up on this channel for the passionate artwork of it all..
Damn, now when I win the lottery I need two rx7s. One clean, one Rob Dahm Pikes Peak build
Dam! Ow that’s a wing. Great music too. My kind of jam. Regards for Montreal.
what a run!!! , im going to say it now i didn't expect you do to as good as you did i guess i will shut up about your driving now hahah. solid work from the team 👌
3/16"!!! That's rally car skid plate thickness!
Here I was expecting to see more carbon skinning the bottom - instead they built a full length skid plate LOL
Oh wow, planking, that brings me back 🤔
16:00 best music yet on the channel
You need to do air jacks they would be best for your application
Absolute savage on the grinder 🤘
Here at pikes peak ready to watch you go up the mountain!
Now that, looks like a proper race car!
Yay Rob!!!
now im just curious how you wound up with a fender exit exhaust
Also interesting when you see most time attack RX7's they have crazy square sideskirts lol. Also Rob after has to be 10 years maybe 11 I still absolutely love what you've been doing on this platform! Literally magic!
Isaiah looks amazing with his flowing locks at Pikes Peak and you couldn't be bothered to wrap the the rx7... WTF!
PRO AWESOME ALL THE THINGS!!! Seriously though these guys are great!
This is also the best definition of how a splitter diffuser works that I have ever heard.
Anyone know where we can watch the runs for pikes peak this Sunday? I want to make sure to see rob’s run.
Mobil 1 usually puts on live event coverage of Pikes Peak on their YT channel. Don't expect to be able to follow cars through every corner though, it's kinda hard to film the whole course and it isn't exactly a big money/view generator either.
@@RyTrapp0I watched them last year and the coverage was garbage. They kept on the host and would just show the cars launching and that’s pretty much it.
@@YourPalQWERTY That's the best live coverage you're going to get, because it's a 13.5 mile long hill climb that doesn't make much money
Nice throwback with the Motovicity shirt!
Hearty effort there rob
Try duct your front cooling straight into your radiator/ic then duct it out the bonnet instead of having vents,youl notice a significant reduction in front end lift
We use chill bars when welding thin sheet. Piece of copper on the top side will make your life soooo much easier! Shoulda tigged them gaps;)
Aw man the music was so nice and jazzy and then it turned into full on random youtube stock tracks :D :O D:
F1 uses a large rake when they setup their aero. Very efficient aero. as the rear compresses downforce increases. Any side skirt around the whells and side to keep air from getting in under the car and keep the low pressure area
Gotta weld those from the top as much as you can, go a little hotter than usual and once you get the puddle draw it down to the sheet metal until it connects, then right back to the thick parent metal(square tube). Had to do this often on through floor subframe connectors.
i love the chill jazz music. and the rest😄👍
This car went from stun to kill great job one bad ass rx7
This car is going to be an absolute beast
its going to be realy cool car
Upside to the thick flat bottom is you have major protection for the chassis and all the sensitive stuff in case of gravel spinouts and other accidents.
Rob acting like Ryosuke Takahashi at the end
Dahm, daddy ishea went to work. That low fi was perfect.
Counter sinking the screws on the flat floor would help reduce drag and use silicone or sika to fill in the holes or edges and sand it flat n smooth helps as well
In dahm we trust
You gotta see if you can get both your 4 rotor and the pikes peak on the next gran tourismo game
wish you safety and best luck on that mountain. Tear it down after the run and check everything over.
Lovin the flock of seagulls hair do halfway through the video
for the underbody panels look into ACM panels. (aluminum skinned hollow core)
It's what lightweight aluminum trailer skins are made from.
Send Cut Send will also cut and supply it to you (not sure in large enough pieces though...)
For areas that are going to "hit", you should look into Tegris (laminated woven PP - Milliken material)
Hey, Rob... You should talk to Keeps about a sponsorship deal where you grow your hair out long and they pay you X amount per inch per month. FYI, having had long hair and short hair, long hair is a lot less hassle. You just tie it back and go to work. No hair shmoo, no blow drier.
When you're not crunching time, you could take the thick aluminium panels, a router, a carbide router bit (flat bottom cutter) and cut triangle pockets, leaving only a thin metal between the reinforcements. That would lighten it up without losing too much structure, thus requiring more material for ribs. All you need is a plywood pattern with an oversized dorito hole for the router to pick up on and cut on a flat surface.
16:32 this was hard to watch, if that thing slips...
LPT: Use countersunk screw for the flat bottom. If you car drags somewhere (Like a little oopsie offside track or just hitting a curb) the screw will be gone and it will make you lose time drilling it out in case you need to remove it.